Characterization of asphaltenes from Cold Lake heavy oil: variations in chemical structure and composition with molecular size

Asphaltenes from Cold Lake oil were separated into fractions by size exclusion chromatography to study the molecular size dependence of chemical structural characteristics. Each fraction was analyzed by proton NMR and UV-visible spectroscopy and by elemental analyses for C, H, N, S, Ni, and V. The r...

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Veröffentlicht in:	Canadian journal of chemistry 1990-07, Vol.68 (7), p.1092-1099
Hauptverfasser:	Semple, Kathleen M, Cyr, Natsuko, Fedorak, Phillip M, Westlake, Donald W. S
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical chemistry Chemistry Chromatographic methods and physical methods associated with chromatography Exact sciences and technology
Online-Zugang:	Volltext
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